Great Bridges century-old

century-old

the Hahn-Banach theorem and its consequences

and the Liénard-Wiechert potentials and the field of a uniformly moving electron

books on 1979 films

Great Bridges century-oldBridges serve a practical purpose, providing passage over rivers, valleys, roads, railroad tracks, and other obstacles to transportation. But many bridges are also works of art. This splendid archive by an expert on the history of bridges and civil engineering amply illustrates the art of good bridge design, as exemplified by ancient and modern constructions. Wilbur J. Watson's study ranges far and wide, and his text accompanied by 200 rare